Nanmadol was a TS tropical cyclone that formed in the East China Sea in 2017. The storm reached maximum sustained winds of 102 km/h (55 kt) with a minimum central pressure of 985 hPa. Tracking across the East China Seain the Western Pacific basin (, it potentially affected Japan, Korea, Taiwan and eastern China. The storm traveled from approximately 17.2°124.1° to 37.4°152.7°, crossing a range of 20 latitude and 29 longitude.